By Chao-Hai Du, Pu-Kun Liu (auth.)
A gyrotron traveling-wave amplifier (gyro-TWT) with the high-power and broad-band features is taken into account as a turn-on key for subsequent new release high-resolution radar. The publication offers the main complex concept, equipment and physics in a gyro-TWT. the main tough challenge of instability festival has been for the 1st time addressed in a targeted and systematic means and mentioned through concise states and brilliant photos. The ebook is probably going to satisfy the curiosity of researchers and engineers in radar and microwave know-how, who want to learn the gyro-TWTs and to advertise its software in millimeter-wave radars.
Chao-Hai Du and Pu-Kun Liu are either professors at Peking University.
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Extra info for Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers
Phys Plasmas 1:3093–3099 58. Basten MA, Guss WC, Kreischer KE et al (1995) Experimental investigation of a 140-GHz gyrotron-backward wave oscillator. Int J Infrared Millim Waves 16:889–905 59. Walter MT, Gilgenbach RM, Luginsland JW et al (1996) Effects of tapering on gyrotron backward-wave oscillators. IEEE Trans Plasma Sci 24:636–647 60. Chen SH, Chu KR, Chang TH (2000) Saturated behavior of the gyrotron backward-wave oscillator. Phys Rev Lett 85:2633–2636 61. Chen SH, Chang TH, Pao KF et al (2002) Linear and time-dependent behavior of the gyrotron backward-wave oscillator.
The field components of the inner cylindrical region could be expressed by accurate analytical expressions. The boundary region, as the Region 2 in Fig. 4, contains disturbance structure introduced to control the wave mode. The Region 2 could be solved by analytical method or by numerical simulation. This general ECM theoretical model is capable of accurately analyzing the instability competition, while maintaining the advantage of efficient simulation. Specifically, a linear theory and a nonlinear theory for ECM system based on dielectric-lined waveguide are also developed.
56c) 50 2 Fundamental Theory of the Electron Cyclotron Maser When an ECM system is in an ideal amplification state, at the upstream port, other than the driving power, there is also a backward wave due to certain factors, such as circuit discontinuity. While the downstream port is an ideal outgoing wave, called amplification boundary condition, as given in Fig. 4 Summary The theories of uniform and periodic dielectric-loaded waveguides are reviewed first. And then a general applicable theoretical model for ECM waveguide system is proposed, which is based on partitioning the transverse plane of the interaction circuit.